Help! Alignment specs for 71 3/4ton

[steves1967]

I need the alignment specs for a '71 3/4 ton 2wd longbed. Everytime I take my truck in to get aligned they use specs for an 85 chevy truck- makes my truck track all funny, wears the outside edges of the tires, you gotta be awake when driving it or the slightest groove/bump in the road makes it pull bad.
thanks,
Steve

[68shortfleet]

Steve, the specs for the 85 should be just fine for your truck. Are you running radial or bias-ply tires?

Caster 2.0-3.5 positive more if possible, but it must be close the the same side to side. With the right side number a little bigger than left.
Camber 0.0-.50 degree positive
Toe 1/16 positive, most shops will follow GM specs and set the toe to 1/8 or more and it will wear the outside edges off.

These specs should work great for RADIAL tires. If you are still running old bias tires the specs are a bit different.

Jason

[steves1967]

I've got radial tires, on 16.5" rims, soon will be switching to a 16" rim... once i find an 8 lug rim that i think looks right.

Thanks for the info!